Collapsible stock



FIG. 1 is a right-front perspective view of a collapsible stock showing our new design.

FIG. 2 is a right-rear perspective view thereof.

FIG. 3 is a left side elevation view thereof.

FIG. 4 is a right side elevation view thereof.

FIG. 5 is a top elevation view thereof.

FIG. 6 is a bottom elevation view thereof.

FIG. 7 is a front plan view thereof.

FIG. 8 is a rear plan view thereof.

FIG. 9 is a right-front perspective view of an alternate collapsible stock showing our new design.

FIG. 10 is a right-rear perspective view thereof.

FIG. 11 is a left side elevation view thereof.

FIG. 12 is a right side elevation view thereof.

FIG. 13 is a top elevation view thereof.

FIG. 14 is a bottom elevation view thereof.

FIG. 15 is a front plan view thereof; and,

FIG. 16 is a rear plan view thereof.

Broken lines in the attached drawings are included for the purpose of illustrating portions of the collapsible stock and form no part of the claimed design. 

CLAIM The ornamental design for a collapsible stock, as shown and described. 